package socket;

import java.io.*;
import java.net.Socket;
import java.nio.charset.StandardCharsets;
import java.util.Scanner;

/**
 * 聊天室客户端
 */
public class Client {
    private Socket socket;

    public Client(){
        try {
            System.out.println("正在连接服务端...");
            socket = new Socket("localhost",8088);
            System.out.println("与服务端建立连接");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    public void start(){
        ServerHandler handler = new ServerHandler();
        Thread t = new Thread(handler);
        t.setDaemon(true);//设置为守护线程
        t.start();
        Scanner scanner = new Scanner(System.in);
            try {
                OutputStream out = socket.getOutputStream();
                OutputStreamWriter osw = new OutputStreamWriter(out, StandardCharsets.UTF_8);
                BufferedWriter bw = new BufferedWriter(osw);
                PrintWriter pw = new PrintWriter(bw, true);


                while (true){
                    String str = scanner.nextLine();
                    if ("exit".equalsIgnoreCase(str)){
                        break;
                    }
                    pw.println(str);//写
                }
            } catch (IOException e) {
                e.printStackTrace();
            }finally {
                try {
                    //关闭socket时会与服务端进行挥手再见
                    socket.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
    }

    public static void main(String[] args) {
        Client client = new Client();
        client.start();
    }

    /**
     * 该线程负者读取服务器发送过来的消息
     */
    private class  ServerHandler implements Runnable{
        @Override
        public void run() {
            try {
                //通过socket获取输入流
                InputStream in = socket.getInputStream();
                InputStreamReader isr = new InputStreamReader(in, StandardCharsets.UTF_8);
                BufferedReader br = new BufferedReader(isr);

                String message;
                while ((message = br.readLine())!=null){
                    System.out.println(message);
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
}
